A monthly overview of things you need to know as an architect or aspiring architect.

Here's a common problem: finding or presenting two collections of related objects where one collection is missing some items. Examples include listing all Customers with their SalesOrders, including ...

When you want to find all the objects that are missing a corresponding object, then you need the LINQ equivalent of an outer join. Here, step by painful step, is how to build that query. Here's a ...